<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>我爱张丹</title>
    <style>
        div{
            width: 100%;
            height: 100%;
            font-size: 50px;
            font-weight: 900;
            background-color: aqua;
        }
    </style>
</head>
<body>
    <div>我爱张丹大宝贝儿</div>
</body>
</html>